Digital audio assembly

ABSTRACT

A digital audio assembly includes a digital signal processor (DSP) mounted and a digital analog converter (DAC) mounted therein. A universal serial bus (USB) socket is mounted in a front panel of a base member and electrically connected to the DSP. The USB socket can be connected to extra media. A secure digital memory card (SD card) socket is mounted in the front panel and electrically connected to the DSP. The SD card socket can receive a SD card and read the digital signals in the SD card. A sound-source input port is mounted in the front panel and electrically connected to the DAC, and a sound-effect input/output port is mounted in a rear panel of the base member and electrically connected to the DAC.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a digital audio assembly, and moreparticularly to a digital audio assembly that can play and record thedigital signal.

2. Description of Related Art

A conventional digital sound-recording device transforms thesound-source signal into digital signal and saving therein. Theconventional digital sound-recording device can play the digital signalor deliver the digital signal to a personal computer (PC) via universalserial bus (USB) and the PC plays the digital signal by a motion pictureexpert group audio layer 3 (MP3) that is installed in the PC.

The advantages of the conventional digital sound-recording device arehaving a small volume and easily being carried. However, the recordingcapacity is decided by the integrated circuit (IC) installed thereinsuch that the volume limits the recording capacity of the conventionalsound-recording device. Furthermore, the conventional sound-recordingdevice only plays the digital signal saved therein.

The present invention has arisen to mitigate and/or obviate thedisadvantages of the conventional sound-recording device.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide an improveddigital audio assembly that can play and record the digital signals.

To achieve the objective, the digital audio assembly in accordance withthe present invention comprises a digital signal processor (DSP) mountedand a digital analog converter (DAC) mounted therein. A universal serialbus (USB) socket is mounted in a front panel of a base member andelectrically connected to the DSP. The USB socket can be connected toextra media. A secure digital memory card (SD card) socket is mounted inthe front panel and electrically connected to the DSP. The SD cardsocket can receive a SD card and read the digital signals in the SDcard. A sound-source input port is mounted in the front panel andelectrically connected to the DAC, and a sound-effect input/output portis mounted in a rear panel of the base member and electrically connectedto the DAC.

Further benefits and advantages of the present invention will becomeapparent after a careful reading of the detailed description withappropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of a digital audio assembly inaccordance with the present invention;

FIG. 2 is a rear perspective view of the digital audio assembly in FIG.1; and

FIG. 3 is a block diagram illustrating details of the digital audioassembly in FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-3, a digital audioassembly (10) in accordance with the present invention comprises adigital signal processor (DSP, 42), a digital analog converter (DAC, 44)and a system memory (46), wherein the DAC (44) and the system memory(46) are respectively electrically connected to the DSP (42).

The digital audio assembly (10) base member (12) having a front panel(14) and rear panel (32) opposite to the front panel (14) of the basemember (21). The digital audio assembly (10) includes a power switch(16), a USB socket (18), a secure digital memory card (SD card) socket(24), a liquid crystal display (26) and multiple functional switches(28) respectively mounted in the front panel (14) and electricallyconnected to the DSP (42). A sound-source input port (22) is mounted inthe front panel (14) and electrically connected to the DAC (44).

A SD card (52) is inserted into the SD card socket (24) such that thedigital audio assembly (10) of the present invention can read and playthe digital signals that are saved in the SD card (52). The USB socket(18) can be connected to extra media and the digital audio assembly ofthe present invention can read the digital signals in the extra mediavia the USB connection.

A direct current (DC) socket (34), an interface port (36) and asound-effect input/output port (38) are mounted in the rear panel (32).The DC socket (34) is adapted to be connected to a power source forproviding electric power to the present invention. The interface port(36) is electrically connected to the DSP (42) and can be electricallyconnected to a PC such that the user can control the digital audioassembly via the PC. Furthermore, the digital audio assembly (10) of thepresent invention can read the digital signals from the extra media viathe USB connection and transmit the digital signals from the extra mediato the PC via the interface port (36) such that PC can save the digitalsignals in the PC. The sound-effect input/output port (38) iselectrically connected to the DAC (44).

Although the invention has been explained in relation to its preferredembodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thespirit and scope of the invention as hereinafter claimed.

1. A digital audio assembly comprising: a digital signal processor (DSP)mounted in the digital audio assembly; a digital analog converter (DAC)mounted in the digital audio assembly; a base member including a frontpanel and a rear panel opposite to the front panel; a universal serialbus (USB) socket mounted in the front panel and electrically connectedto the DSP, the USB socket can be adapted to be connected to extra mediaand the digital audio assembly reading the digital signals in the extramedia via the USB connection; a secure digital memory card (SD card)socket mounted in the front panel and electrically connected to the DSP,the SD card socket adapted to receive a SD card such that the digitalaudio assembly of the present invention can read and play the digitalsignals that are saved in the SD card; a liquid crystal display mountedin the front panel and electrically connected to the DSP; multiplefunctional switches respectively mounted in the front panel andelectrically connected to the DSP for user to control the digital audioassembly; a sound-source input port mounted in the front panel andelectrically connected to the DAC; and a sound-effect input/output portmounted in the rear panel and electrically connected to the DAC.
 2. Thedigital audio assembly as claimed in claim 1 further comprising aninterface port electrically connected to the DSP and adapted to beelectrically connected to a PC such that the user can control thedigital audio assembly via the PC, thereby the digital audio, assemblyreads the digital signals from the extra media via the USB connectionand transmits the digital signals from the extra media to the PC via theinterface port such that PC can save the digital signals therein.